I was thinking...it seems like at the moment, theres a dupe wipe, most dupes get deleted, all the legit players get raped, and all the dupers don't even care. Because in a few days time they will have all there duped items back again, where as it takes legit players weeks/months to replace there deleted items, and then they lose it all again in the next wipe.
So...we all know K2 won't do anything right to help this game if it means they will lose money, but duping, this is the only thing they want to fix, but can't seem to keep up with the dupers, and can't find a way to stop it. My suggestion is daily dupe wipes. Yes, yes, yes, for the first 1-2weeks lots of legit people are gonna get absolutly fuxord, but just think, duping is pretty damn hard now (well if they bring save command back or fix server stability) and it probably takes about a day to dupe an item worth having. Dupers won't stay in this game if they lost everything they made before they got to sell/use the items.
Eventually, in my opinion, dupers would give up, servers would be dupe free, K2 would get more money from trina's, because people would be upgrading more because they wouldn't be scared of buying high lvl items. And alot of people would probably start buying prem/pus items, because the game would be worth buying for.